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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $782,624,302 | 103,552,018 | 103,552,018 |
| 2006 | $690,187,996 | 94,395,530 | 94,395,530 |
| 2007 | $764,282,423 | 87,247,893 | 87,247,893 |
| 2008 | $287,820,433 | 27,232,380 | 27,232,380 |
| 2009 | $252,835,444 | 28,160,496 | 28,160,496 |
| 2010 | $355,640,806 | 51,347,341 | 51,347,341 |
| 2011 | $372,601,501 | 41,584,317 | 41,584,317 |
Note: Quantity represents Weight in kilograms
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